NOISE CONTROL ENGINEERING, LLC — Department of Defense SBIR Phase I: N172-134
NOISE CONTROL ENGINEERING, LLC — SBIR Phase I award from Department of Defense.
- Amount
- $155,353
- Agency
- Department of Defense · Navy
- Program / Phase
- SBIR · Phase I
- Topic
- N172-134
- Solicitation
- 2017.2
- NAICS
- —
- Place of performance
- MA
- Period
- 2017-09-25 → 2018-01-17
Description
An abrasive blasting nozzle is a complex aero-acoustic noise source, characterized by super-sonic, two-phase flow. Noise from an abrasive blasting nozzle is comprised of three sources: (i) turbulent mixing noise (ii) shock-associated noise and (iii) jet impingement noise. It is not uncommon for abrasive nozzles to generate noise levels greater than 120 dB(A); far exceeding typical occupational noise limits. <br><br>The work proposed herein will apply sophisticated aero-acoustics principals to the design of an abrasive blasting nozzle; reducing noise from the nozzle while simultaneously improving the devices productivity. The nozzle developed through this effort will provide industry with a device that represents an evolutionary step forward in safety and efficiency.